Telegraph message classification system



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F/G. j] 995 mvENToR A imams, xloa, UCl85` EKISQ ou/s M. P07715 5 8% EATroRNEY Patented Dec. 24, 1940 UNITED STATES TELEGRAPH MESSAGECLASSIFICATION SYS TEM

Louis M. Potts, Evanston, Ill., assignor to Teietype Corporation,Chicago, Ill., a corporation of Delaware Original application January17,1929, Serial No.

Divided and this application March 30, 1933, Serial No. 663,483. RenewedMarch 56 Claims.

This invention relates to telegraphic signaling systems adapted for thetransmission of news items of classiable nature, such as, pri-ces ofstock, grain and merchandise, and is a division of application SerialNo. 333, 161, filed January 17, 1929.

The large number of stocks listed in the modern stock exchange and thevast number of transactions and reports of such transactions upon aticker tape have produced such a mass of reports thereon that a person`who is interested in but one or a few particular stocks is seriouslyburdened vby the necessity to consider all quotations of the total dailyticker tape to find those quotations which are of interest to him. Tosubmit and make possible the expeditious consideration of particularquotations, this invention provides for recording upon one tape thereports of one stock or of any desired number of individually selectedstocks or items to the exclusion of all other stocks. If, when editingthe ticker tape for publication or for retransmission to provideindividual service on particular stocks, one editor is unable to handlethe quotations expeditiously, then several editors are employed, eachediting the records of a group of specified stocks, and to simplifyediting of the reports this invention provides for printing before eacheditor a tape which contains only the reports of all stocks allottedthereto.

Accordingly, the object of this invention is to provide a systemincluding a set of printing telegraph machines upon each of which arerecorded the reports pertaining to a group of stocks comprising in totalthe reports of all of the listed stocks and/or further to provide forrecording on a printing telegraph machine the reports of a single stockor of selected stocks.

These objects are attained by providing a group of selectively activatedprinters, and by providing in cooperation therewith a selector uponwhich allitems are registered, the selector being adapted to cause aselection among the printers in accordance with the registeration. l

At the transmitting station, the several quotation messages are madeuniform in structure so that the transmission of each such message shallconstitute a succession of code signals in the order of l(1) stock nameor symbol in letters, (2) price in figures with a fraction and (3) rangeindex. At the receiving station, the code signals for the stock name arerst to be received and these are registered in selective manner torender responsive any printer or printers which have been assigned tothe stock represented by the signals registered, after which the stockname of the registered signals as well as the price and range of thesubsequent signals in any message, are recorded, upon the responsiveprinter or printers. Theacts of registering the stock name or symbol andrenedering a printer or printers responsive in accordance therewith isrepeated in full cycle for each andevery message. The printers thusrendered responsive may be grouped in any manner suited to the traic andany specified stock may appear in one or more groups, at the same timebeing sole to one or more printers, all as desired.

This invention contemplates the continuous transmission of an indefinitenumber of generally similar but speciiically classiflable telegraphicmessages over a path of communication, the automatic classification ofthe messages by the re ceivlng mechanism, the automatic selection by thereceiving mechanism of a destination or of a further path identifledwith the classification of a current message, and the ultimatepropagation of the entire message into the selected further path. Eachmessage is classified according to the leading part of the message and asufhcient part of the message is recorded in a selector to cause theselector to identify the further destination or path to be used, theselector having the further function of storing in reproducible form thesignal impulses which have operated it to eiect the selection.

In the specific embodiment chosen for illustration, the messages arestock-market quotations each comprising a stock code of one or moreletters followed by a series of figures for prices and containing attimes also a character other than iigures and forming a part of themessage. In these messages, the letters of the message form the leadingpart upon which classication is based, which operates the selector andwhich is stored in the selector in reproducible form. The remainder ofthe message also is stored by means auxiliary to the selector, and arepeater distributor is arranged to retransmit the entire message fromthe two storagev devices; namely, selector and the auxiliary means.

In the selectable further paths above referred to there are connected anumber of printers, which may be of stock ticker design, such asdisclosed in Patent No. 1,821,110, issued September 1, 1931, to S.Morton et al. wherein is described a siximpulse printer, five impulsesof the received code acting to position a typewheel selectively, and thesixth impulse acting to select one or the Vother of two case shiftplatens or hammers for printing, after which the mechanism operates theselected hammer to press a record tape against the typewheel andthereafter operates to feed the record tape into its next printingposition. A single printer may print quotations for several stocks, orfor all stocks beginning with a specified first letter, or for severalfirst letters, as A to G, or a printer may print the quotations of aselected list of stocks and a companion printer may print all others."and a specific stock may be printed by several printers as desired.

A better understanding of the invention may be had from the followingdescription, taken in connection with the accompanying drawings wherein,

Fig. 1 is a circuit diagram of the transmitter keyboard mechanism in oneembodiment of the invention,

Fig. 2 is a view of a detail of the improved keyboard as shown in Fig.1,

Fig. 3 is another view of the detail of the keyboard shown infFig. 2with the locking members shown in operated position,

Fig. 4 shows a detail of the lock restoring mechanism with the lockingmembers in locked position, Y

Fig. 5 is a top view of a part of the keyboard and of the lockrestoring-members with the locking members in locked position, v

Fig. 6 is a chart of codes suitable for a telegraphic system using thisinvention,

Fig. '1 is a circuit diagram of a distributor for routing the indicatingimpulses into the desired local circuits,

Fig. 8 shows details of a selector,

Fig. 9 shows further details of the selector of Fig. 8,

Fig. 10 is a diagram of an arrangement of selective stock tickers foruse according to this invention,

Fig. 11 is a diagram of the potentials indicated elsewhere by symbols,

Fig. 12 is a view of a tape with records according to this invention,and

Fig. 13 is a chart of code signals for control of start-stop recorders.

A keyboard mechanism I, Fig. 1, comprises eight sets of keyboardsections 1| to 18, of which 1| to 13 each comprise a complete set ofstandard telegraph typewriter keylevers 19, one for each letter of thealphabet, sections 14 to 16 each comprise ten keylevers 8 l, one foreach of the ten digits from 0 to 9, section 11 comprises seven keylevers82, one for each of the fractions from 1/8 to 'V8 including a break keyfor no fraction" and an extra blank keylever 83 for the start operation,and section 18 comprises four keylevers 84 to 81, one each for closing,opening, high and low quotations respectively. f

These keyboard sections may be of any construction in which the leversoperate electrical contacts in various combinations, as for example, inthe manner shown in the patent to L. M, Potts, 1,299,608, issued April8, 1919, or the patent to E. E. Kleinschmidt, 1,567,392, issued December29, 1925, for Generating code combinations of impulses, although it willbe understood 'that these patents are cited as illustrations and thatany other transmitter such as the keyboards used for call indicators inautomatic telephone exchanges may be utilized.

In the illustrated embodiment, keylevers 19 on keyboard 1I selectivelyoperate flve contactors- 9| between contacts 92 and 93 in variouscombinations, and as described in the patents referred to above, eachkeylever 19 will operate these contactors in individual combinations.Contacts 92 are connected in multiple over conductor 94 to negativegenerator 95 and through a resistance 96 to ground while contacts 93 areconnected in multiple over a conductor 98 to positive generator 99 andthrough a resistance |88 to ground. All keylevers on keyboards 1|, 12,and 13 control similar contactors.

Levers 8| on the keyboards 14, 15, and 16 comprising each ten digits,selectively control four contactors |05 operating between contacts |86and |81, connected to generators 95 and 99, and upon depression of anyone of keylevers 8|, combinations of four contacts are closed as iswell-known. Keybank 11 similarly controls combinations of threecontactors |95 for providing the necessary seven codes for the fractionsand keylevers 84 to 81 each control one contactor |85. Key lever 83controls contactor |95.

Upon operation of a keylever 19 in bank 1| a locking mechanism operatesto lock the operated key in position and to lock the remaining levers onthe bank against operation during transmission of a code, then magnetlll associated with the keyboard operates for releasing the operated keyto return from its operated position, and to release all levers of thatkeyboard to permit operation, which prevents the operation of more thanone key in any one keyboard during the transmission of a code of signalimpulses.

Details of the latching mechanism are disclosed in Figs. 2 to 5, inwhich each of the keylevers 19 is pivotally mounted ,on a pin H5, and isprovided with an upward arm |2| and lug |22 and with downwardlyprojecting lugs ||6 in combinations on the under edge thereof whichcoact with levers I|1 pivoted on pins |I8 and operate contact closerssuch as 9| between their contacts 92 and 93. In response to theoperation of a keylever 19, Fig. 2, one or more levers l I1 will beoperated, as shown in Fig. 3, to operate in l turn the contact closers9| associated with them.

A locking lever |24 fixed to rocking shaft |25 journaled in the frame,and under tension of -spring |26 from lever |24 to the frame, has a helddown by bar |23 in operated position. The

latch |21, rotatable on pivot |28 and under tension of spring |29attached to pin 3| and to the frame,.has an arm |32 which carries auniversal bar |33 extending beneath all of the keylevers 19 of the onekeyboard.

Under idle conditions, with all keylevers 19 in non-operated position,spring |29 maintains universal bar |33 in engagement with the loweredges of all of the keylevers, and upon the operation of any lever theuniversal member |33 is pushed down and latch lever |21 is rocked todisengage lever |24, permitting spring |26 to rock lever |24 to movelock bar |23 to a position shown in Fig. 3, locking all non-operatedkeylevers against operation and locking the depressed keylever inoperated position.

Restoring or unlocking magnet Figs. 1, 4. and 5 is provided with anarmature |34 fixed upon rocking shaft |25, so that upon energization ofmagnet shaft |25 is rocked to move bar |28 away from all lugs |22,unlocking the depressed keyleverto rise and to permit bar |88 to rise,whereby spring |29 may rotate latch |21 into its normal position, Fig.2, under arm |24,

thus conditioning all keylevers of the one key.-v

board for operation, and holding the lever |24 after the deenergizationof magnet Referring again to Fig. 1, each oi' the contact controllers 9iis connected over conductors such 10 as |4| individual thereto toindividual segments |42 on a distributor |48 which comprises a rstsection composed of a segmental ring |44 and a solid ring |45 bridged bybrushes |48 and |41 and a second section comprising a segmental ring |48and a solid ring |49 bridged by brushes |50 and On ring |44. iirstsegment |58 connected ,to

negative generator, is a. stop segment and second segment |54 connectedto positive generator is av start segment, while the next fifteensegments are connected to fifteen contact controllers 9| on the firstthree keybanks 1| to 18, the succeeding twelve segments are connected tocontact controllers |05 of keybanks 14`to 18, the next three segmentsare connected to contact controllers on keybank 11, and the next foursegments are connected. to contact controllers |05 on keybank 18 andlowermost segment on ring |44 is shown unconnected. Solid ring |48 isconnected toa signaling line |55 extending to a receiving apparatus fortransmitting thereto the codecombinations generated by keybanks 1| to18. For each cycle of operation of this giant start-stop distributorthere are transmitted three letter characters, three numbers, a.fraction, and at times a control signal, in which cycle the same com--bination of impulses may be used for a letter, for a number and for afraction, and instead of determining by a shift signal which characteris a ,m letter and which a number, this is determined by the position ofthe code combination with respect to the start impulse.

Ring |48 is provided with eight segments |58, each so positioned withrespect to permutative 45 segments on ring |44 that brushes |50 and |5|when in rotation pass thereover immediately after brushes |46 and |41have moved over the corresponding permutative segments, a segment |58being connected over conductor |59 to magnet I, associated with thekeybank 1| and the other segments on ring |48 are connected tocorresponding magnets and solid ring |49 is connected to a battery. Whenbrush |50 engages any segment |56 a circuit is completed through theassociated magnet which upon energization restores the latchingmechanism for permitting the restoration of the keylevers.

Brushes |46, |41, |50, andg|5| are carried on arm |6| in operativerelation with a friction clutch 60 |62 which is carried by and rotatablewith a driving shaft |63 which also carries a gear |64 and a spring tocompress the friction clutch while the gear |64 meshes with pinion |66carried on drive shaft |61 of a direct current motor |68 com- 65 prisingan armature |89 and field winding |10, the latter connected at oneterminal through a resistance |1| to a source of energy and at the otherterminal to ground. Upon the same shaft with the armature |69 is analternating current motor |13 which is connected through a lamp |14 tothe secondary of a transformer |15, the primary oi this transformerbeing connected to two contacts |16 and |11 of a contact spring |18mounted on one of the tines of a tuning fork |19, which is connected toa source of energy. A circuit for an electromagnet |8| is periodicallyclosed through a contact engaged by spring |82 mounted on the other tineof tuning fork |19, so that when the tines are spread, a circuit for theelectromagnet |8 is closed from positive battery through 5 fork |19,through spring |82 and contact (now closed), winding of magnet |8| andresistance to ground and the magnet thus is energized to bring the forktines together. .In the spread position, current liiows through contact|11 and the right- 10 hand half of the primary of transformer |15 toground, while with the tines closed, spring |18 closes contact |18 andcompletes a circuit through the other half of the primary winding and inthe opposite direction, so that periodical reversals of 15 current areproduced inthe primary of transformer |15 which in turn induce analternating current of a predetermined frequency in the secondary of thetransformer which flows through the alternating current motor |18. Thetines of 20 the tuning fork |19 are made to vibrate at a predeterminedfrequency, then are kept vibrating at this frequency by theelectromagnet|8|. and accordingly currents of a constant frequency ow through motor|18 which produces rotation at a 25 speed determined by the frequency ofthe current flowing therethrough. This frequency control system is moreclearly described in U. S. Patent No. 1,764,316 and is illustrated inFig. 1 of that patent.A v 30 Arm |8| is normally latched againstrotation by a latching armature |9| pivotally mounted on frame |92 ofmagnet |98. When the magnet |93 is energized, it moves armature |9| andreleasesl arm |6| for rotation. Magnet |98 is connected 35 overconductor |94 to a contact controller |95 on the keybank 11, which isarranged to be closed upon the operation of any of the keylevers 82 orv83 on keybank 11.

In order to transmit a'quotation of a particular o item, the operatorfirst depresses a keylever on each of the rst three keybanks 1| to 18for transmitting a code to selectthe terminal printer to which thequotation is to be transmitted, which code when received will `selectthe recorder as- 45 signed to the particular item indicated. Theoperator will also depress one of the keylevers on each of the banks 14to 18 which will prepare codes individual to the digits making up thequotation for the indicated item, and also one of the 5o levers 82 onthe bank 11 to transmit a code for the fraction in the quotation and akeylever on bank 18 when and if it is desired to transmit a codeindicating whether the quotation is close, opening, high, or low. Uponthe depression of 55 any keylever in banks 1| to 18 the other keyleversin each such bank are locked from operation and the depressed keyleversare locked in depressed position. Depression of any keylever 82 or 83closes the contact |85 and energizes magnet |93 50 to start thedistributor, as a result of which the arm I 6| is thereupon driven bythe motor |68. With the brushes resting on stop segment |53, currentfrom negative generator ows over line |55 as a normal stop condition andwhen brush 55 |46 moves to the next or start segment |54, positivegenerator is connected to the line |55 from segment |54, brushes |46 and|41 and ring |45, which current will function to release a distributorlocated at the receiver similar to the distribu- 70 tor described above.

As brush |46 rotates over the first ve segments |42, a code is impressedupon line |55 in accordance with the positions of contact controllers 9|operated by the depression of key- 75 levers 18 on the bank 1|, theimpulses being transmitted from sources of energy 95 or 89. As brush |46moves over the next ilve segments a code is transmitted in accordancewith the contact controllers operated on bank 12 and the same isrepeated during the next ilve segments in accordance with the contactcontrollers operated on bank 13. As brush |46 moves over the next foursegments, .a code is transmitted comprising a combination of fourimpulses individual to a digit, and the same occurs during the next twogroups of four segments each, the codes transmitted being determined inaccordance with the contacts operated on keybanks 16 and 16. During thefurther movement of the brush over the next three segments, a code ofthree impulses indicating a. fraction value is transmitted, and as brush|46 moves over the next four contacts, a signal is transmitted inaccordance with the depression of a keylever, if any, on bank 18 toindicate a characteristic of the quotation which has been transmitted.

Rotating with brushes |46 and |41 are brushes |50 and I5| and when brush|50 engages segment |56,l a circuit is completed for the magnet I I Iassociated with bank 1 I, from ground through winding of magnet III,conductor |59 and through segment |56, brushes |50 vand |5I to ring |49an-d battery, which is completed immediately after the code recorded onbank 1| has been transmitted, and results in the energization of magnetIII, and the operation of the locking mechanism of Figs. 2 to 5 torelease the keylevers on bank 1 I thereby conditioning the keylevers forreoperation, permitting the operator to operate another keylever for thenext quotation to be sent without waiting until all of the codes for thepreceding quotation have been sent. The apparatus at the transmittingstation is normally in non-operated condition and upon the operation ofkeylevers in banks 1| to 11 the distributor |43 is released to make asingle revolution during which time the codes are successivelytransmitted over conductor |55. A similar transmission may be effectedby an automatic transmitter controlled by a perforated tape.

Signaling line |55 may extend to a polar :relay 1II, Fig. '7, at areceiving station, whose armature 1I2 is connected over a conductor 1|3to a ring 1 I5 of a distributor 1I6, comprising ring 1 I5, a rstsegmental ring 1|1 and a second segmental ring 1|8, bridged by brushes1|9 to 12| which are carried on an arm 122.

A starting signal from segment |54, Fig. 1, over line wire |55 willoperate polar relay 1I I, Fig. 7, to close its armature 1I2 to negativebattery and thus clo'se a circuit through wire 1I3, brushes 1|9 and 12|,and top segment of ring 1|8 through starting magnet 1 I4 to positivebattery, for energizing magnet 1|4 to operate its armature to releasebrush-arm 122 which then rotates by power of motor and friction clutch,not shown, but similar to that shown in Fig. 1.

The iirst fteen code segments of ring 1I1 are connected over conductorssuch as 123A and 124 to associated individual marking selector magnets125 and 126, Fig. 8, there being a marking magnet for each of the rstfifteen code segmentsalthough only two such magnets are shown.

The first fifteen segments on ring 1|8 are connected over conductorssuch as '|21 and 128 to spacing selector magnets -such as 129 and 130respectively, there being fteen such selector magnets for the rstfifteen code segments. Selector magnets 125, 126| 129, and 130 controlnotched permutation bars 13| and through those notched bars they controlcode bars 132 individual to stocks or commodities. which cooperate withreleasing magnet 134 and switch operating magnet 135 to controlselectively a group of contacts 136 and also a contact |001 which inturn controls circuits over conductors I|I2 and |I|3 extending to relays|00I, |002, |003. |004, Fig. 10, each representing a stock item or a`group of such.

While the brushes 1|9 to 12| are rotating over the first fifteensegments in synchronism with brush |48, Fig. 1, selector magnets 125 to126 and 129 to 130 are energized to select a group of contacts 136 to beclosed, individual to the particular stock or commodity, and while brush12| rotates over the remaining segments on ring 1|8, a bank of polarrelays 19| to 809 are selectively operated in accordance with'theoperation of the polar relay 1II by impulses received over conductor|56, these impulses being codes for numbers, fractions and range. Relays19| to 809 accordingly operate their armatures in accordance with thepolarity of impulses which operate relay 1||, and the armatures of theserelays in turn control circuits from battery to conductors 849.

Segmental ring 1|1, in addition to iifteen segments connected toselector magnets, is provided with a special segment 86| near the end ofrevolution of brush 120 which is connected over a conductor 862 to amagnet 863, Fig. 9, provided with an armature 864 normally held in itsretracted position by a spring 865 in the path of Yan arm 866 carryingbrushes 861 to 869 of a distributor 81|, comprising rings'812 to 814bridged by brushes 861 to 869 on arm 866 which is driven by a motor (notshown) through clutch 810. Ring 812 is provided with a sector 815 whichis connected to battery and ring 813 comprises a stop segment 811 onwhich the brush 868 normally rests and a segment 818 connected over aconductor 819 to magnet 134 which releases the code bars 132 that theselected one may unlatch its group of contacts 136.

In operative relation with each pair of mag- Figs. 8 and 9, each havinga series of equally -spaced notches. in its upper edge and a notch inits lower edge, and each under tension of a spring winch draws the bartoward the armaturel of the marking magnet 125, whose attraction andoperation may move the permutation bar so that armature of the magnet129 then may engage the notch in the lower edge of the permutation barto restrain the bar against the action of `the spring until such time asthe spacing magnet may be energized to withdraw its armature. In thismanner all of the fifteen permutation bars 13| may be positionedselectively in accordance with a received code.

Pivoted at 133 and just above the permutation bars 13| are selector codebars 132 arranged so that each code bar .132 crosses all permutationbars 13|, each code bar 132 being provided with a series of equallyspaced lugs, one lug over each permutation bar, each lug being bent tothe right or to the left of the plane of the code bar, by which bendingeach lug will either be over a lug or over a notch, optionally, of apermuta- 'tion bar in the spacing position. Each code bar 132 isindividual to an individual corresponding code of impulses by which thepermutation bars may be set in code position, so thata speciiic .codebar may havenotches in all permutation Sil gized momentarily under bars13| which correspond to spacing impulses in the code, and the lugs ofthe responsive code bar 132 will be bent to be then over notches in thespacing-signal permutation bars, while magnet 125 will be energizledmomentarily under bars 13| which correspond to marking impulses in thecode and the lugs of the responsive code bar 132 will be bent to be thenover notches in the marking-signal permutation bars. Code bars 132 arepivotally mounted on a common pivot at 133 and are urged toward thepermutation bars by springs not shown. The code bars are held up by auniversal member 131 carried by a spring-tensioned bellcrank memberwhich is operated by the armature of solenoid magnet 134 which, whenenergized, lowers the member 131 land permits all code bars 132 to moveinto engagement with permutation bars 13|. All code bars will be stoppedby one lug br more engaging lugs on permutation bars except that theremay be one its individual switch 136.

only selected code bar which will have notches under all lugs and which,therefore, will move farther.

Positioned under the free ends of codebars 132 are latches 138 on acommon pivot 139 and each latching its associated switch bar 190 againstmovement by tension of the contact springs in All switch bars 140 may beengaged and rotated counterclockwise by a single universal member 14|carried by a rocking lever 162 pivoted at 143 and operated by armature144 of solenoid 135, when energized over wire 145 and segment 146 indistributor 81|.

When brush 120, Fig. 7, engages segment 86|, a circuit is closed fromeither battery of armature 'H2 through ring 1|5, brushes 1I@ and 120,seg-` ment 86|, wire 662 and magnet 863, Fig. 9, to ground, operatingarmature 869 and releasing brush arm 866. Immediately thereafter brushes861 and 869 close a circuit from battery through segment 146, wire 145,and solenoid 135 to ground,

. operating the universal member 16| to restore any previously operatedswitch bar 140 and to lift all switch bars 140 from their latches 138 torender the latches free to move, and simultaneously brushes 661 and 868close a circuit from battery through segment 818, wire 819, and solenoid134 to ground, operating universal member 131 and releasing all codebars 132, to permit a selected code bar to operate its latch 138 toclear the shoulder of the switch bar 140. Segment 146 ,is shorter thansegment 818, so that the circuit of solenoid 135 is interrupted andmember 14| per mits all switch bars to move clockwise to engage theirseveral individual latches, the selected switch bar not engaging itsoperated latch and,

therefore, moving enough to permit its switch 136 tov close itscontacts, including contacts |001.

The operation of the complete selective system is as follows:

Codes of impulses received over conductor |55, Fig. '1, variably operatepolar relay 1I I to move its armature 'H2 between its two contacts.Normally, armature 1|2 is in contact with positive battery and startmagnet 1|4 is also connected to positive battery and, therefore, isunenergized, but upon receipt of a starting impulse, armature 1 I 2engages negative battery and a circuit is completed over armature 1 I 2,conductor 1|3, ring 1 I5, brushes 1|9 and 12 I, first segment of ring1|8 and winding of magnet 1|4 to positive battery, energizing magnet 1|4to release arm 122, which with its brushes 1|9 to 12| now is rotated bya motor, as in Fig. l. As brushes 120 and 12| move over the lrst fifteensegments of rings 1|1 and 1|8, circuits are completed alternatively toeither the marking magnet 125 or spacing magnet 129 of each pair,depending upon the operation oi' the armature 1|2 of the polar relay 1|I in response nto impulses over conductor |55, thus setting thepermutation bars 13| to select a code bar 132 forl operation. Y

As brush arm 122 rotates further, positive or negative impulses aretransmitted to polar relays 19| to 809 through armature 1|2, ring 1|5,brush 1I9, brush 12|, and segments of ring 1|8, relays 19| to 808 andground.

During the rotation of arm 122, brush 120 engages segment 86| and acircuit is completed from either polarity of battery at armature 1|2,over conductor 1|3, ring 1|5,` brushes 1|9 and 128, segment 86| andconductor 862, the starting magnet 363 and ground, operating armature861| to release arm 866 for rotation, and as brushes 868 and 869 engagesegments 818 and 146, circuits are completed fory magnets 134 and 135which restore the prior operated switch bar 140 and operate the nowselected switch bar 140 as has been made clear above, to close theselected contacts |001.

Incoming price signals now have been stored in the primary relays 19| to809 and by reason of that storage they are manifested as positive andnegativepotentials upon Wires 949, Figs. 7 and l0.

In Fig. 10, there is illustrated diagrammatically a system showingseveral stock tickers or printers individually operative under variousconditions of ticker selection. Printers of the class preferablyemployed in this capacity are oi the start-stop type such as is shown inthe Patent No. 1,821,110 to Morton et al. above referred to. Characteristic of this class of device is the particular signaling system where inaddition to the six`code impulses there is a preceding start impulse anda concluding stop impulse. In order to cause the stock quotation signalsemployed in the transmission system herein disclosed to conform to thepeculiar requirements of start-stop printers, distributor 95| isprovided and the translation is performed as follows:

Ring 950 is divided into a plurality of segments, the first of which isconnected to positive battery to produce a marking signal or stopimpulse, so that the printers will not be operated while distributor arm955 is at rest, and a start magnet 951 is connected over control line96| to the bottom segment of ring 1|1, Fig. 7, and is operable over acircuit which is closed momentarily just before distributor 1|6 stops.Energization of magnet 951 retracts armature 956 against the pull of itsspring and permits distributor arm 955 to st art and make a completerevolution.

The second segment on the ring 959 is permanently connected to negativebattery to produce a starting impulse to start the selected printer fora single operation. The five segments following are electricallycontrolled by the corresponding rst ve code bars 13| of the selector,Figs. 8 and 9, through a lug 961 upon each code bar 13| which engages acontact spring 964 sothat when the code bar 13| is in its markingposition connection is made between the spring 969 and its righthandcontact and positive battery, and conversely, when in its spacingposition connection is made between the spring 864 and its left-handcontact and negative battery, so that each of the five segments 962assumes a potential corresponding to the Position of its correspondingcode bar 13|.

The eighth segment corresponds to the sixth code lmpulseof a code forthe printer and functions as a shift signal to condition the printermechanism to print a letter in response to the 6 five signals uponsegments 3rd to I7th inclusive of the ring 950.

The ninth and seventeenth segments of the ring 950 are the same as thefirst and represent the cessation of the cycle in the ticker. Each isfol- 10 lowed by a negative start segment, five code segments, and aletter-case shift segment, and the twenty-fifth segment is a stop-signalsegment. When brush 954 reaches the twenty-fifth segment, the threeletters of the quotation message will have been transmitted over ring952 to all printers connected therewith, and the next cycle of each suchprinter is to result in a figure printing operation. The figures coderequires but a four-impulse permutation and is accompanied by 20 a fifthimpulse which is always negative and a sixth impulse which ls alwayspositive. Accordingly, the twenty-sixth segment is a negative startsegment. then follow the necessary four segments for the figureidentication, controlled by relays son, 19|, sul, 192. over wires 949,and a permanently connected negative fifth code segment, a permanentlyconnected positive segment for the iigure-case shift signal and apermanently connected positive segment for the stop signal. Thearrangement of any particular code of transmission is, of course, apurely arbitrary allotment so that while certain of the codecombinations herein disclosed may diil'er from those of correspondingcharacters in other systems, it will be understood that a uniform planis intended. A suitable code ls disclosed in chart form in Fig. 13. Thetwo succeeding printing cycles are similar to the one just described andare followed immediately thereafter by the fraction segments 99| 40 ofwhich there are but three and after which there follow three positivesegments to produce the standard six impulse code interval. The nalcycle during which the characteristic or range signal is transmittedrequires buttwo variable impulses in the permutation, hence there areprovided but two connected segments 982. remaining four segments two areconnected to negative battery and two to positive battery. Theseimpulses are followed by the stop impulse from the first segment, afterwhich the cycle repeats. Reference numerals 988 to 990, 992 and 994indicate printers such as referred to above, magnets 993 to 991 beingreceiving magnets for code 56 impulses, and the several printers arevariously connected so that only certain ones of them operate underpredetermined conditions of selection. For example, the printer 988 isprovided with a control relay |00| which in turn is con- 60 nected tocontacts |001,` |008, and |009 carried on selector banks, as 138, Fig.9, so that when any of these particular stock selections are madeeffecting any of these contacts by shifting them, then, and then only,the printer 988 is rendered eifective to record the stock quotation,while relay |002 of printer 989 is connected to the contacts |005, |006,and |0|0, so that this printerk is operative only during the selectionof any of the three corresponding stocks. Printers 990 and 992 areconnected to operate alternatively by contacts of relays |003 and |004of which only one contact may be closed at any one time, and wherebyduring any stock selection the printer 990 is rendered operative whileat all other times the printer 992 is in operative condition, The

selector of Figs. 8 and 9 thus constitutes a pilot means which, by itsselective contacts |001 and others, determines selectively a path fortransmission of impulses from its storage contacts 964, Fig. 10. 5

It will be seen that in accordance with the present invention there areprovided several convenient modes of associating printing mechanismswith the selecting system. These modes may be varied in accordance withparticular re- 10 quirements as they arise, such as for example, in thecase of stock specialists Ywhere only certain stocks are required to berecorded.

In the operation of this invention the speeds at which the printer anddistributors are opl5 erated are suitably controlled.

Final code segments 982 transmit a code to the printer in accordancewith the setting of two storage relays 199 and 809, to print a dis- Ytinctive mark on the printer tape indicating the 20 type of quotationthat has been'received, such as an arrow mark pointing upward ordownward, Fig. 12, to indicate a new high or low quotation price.

An overlap is provided by arranging that the 20 brush 954 shall startbefore the brush 12| stops, as a result of which the brush 954 will haveat all times a cyclic position in one cycle which will be in advance ofthe cyclic position of brush 12| in the next cycle, and the brush 954will use 80 each stored signal before the brush 12| resets the bar 19|or the relay 19| to 809, by which the signal is stored, and the brusharm 122 is so timed in speed that the brush 954 in distributor willcomplete its cycle just before the dis- 35 tributor 81|, Fig. 9,operates solenoid 135 to open the contact |001 or/and others to open thecircuit over which the brush 959 has been transmitting.

Although the invention has been describedin 40 connection with aspecific form thereof, it will be understood that it has furtherapplications and it is not intended to be limited in scope by theembodiment shown herein for illustration.

The invention claimed is: 45

l. In a telegraph system, a telegraph circuit, means to transmitcharacter code signals over said circuit, a printing recorder controlledby said signals, said recorder including shift mechanism, and means tocontrol the shift mechanism inde- 50 pendent .of said character codesignals transmittedover said circuit.

2. In a printing telegraph system, a master station, a substation, aplurality of printing recorders at the substation, a circuit connecting55 the master station and the substation, means to transmit over-saidcircuit a series of signals, means responsive to part of said signalsand acting to select one or more oi said recorders, and means responsiveto another part of said 50 signals and acting to make record on theselected recorders.

3. In a system to record a plurality of items.

a transmitter, a plurality of recorders, an electrical connectionbetween said transmitter and 65 said recorders, means to cause thesignals correspending to any item of a selected group of said items tocontrol one of said recorders, and means to cause the signalscorresponding to any item of another selected group of said items tocon- 70 trol another of said recorders.

4. In a printing telegraph system, a master station, a substation, aplurality of recorders at the substation, a circuit connecting saidsubstation and said master station, means to transmit 75 impulseconditions over said circuit, means responsive to said impulses i'orselecting one of said recorders, means for transmitting other im-` pulseconditions over said signaling line, and means responsive to all of saidimpulse conditions for controlling said selected recorder.A

5. In a printing telegraph system, a master station, a substation, aplurality of recorders at said substation, a circuit connecting saidmaster 'station and said substation, means for transmitting codecombinations oi' impulse conditions from said master station to saidsubstation, means at said substation responsive to some of said impulseconditions for selecting a group of said recorders, and means responsiveto further impulse conditions for operating the recorders of saidselected group.

6. In a stock quotation system, a plurality. of recorders, an electricalcircuit, meansto transmit over said circuit a series of code signals,certain oi said code signals corresponding to stock designations.certain other of said code signals corresponding to a characteristic ofa stock, means undencontrol of a stock designation signal to select oneoi said recorders, and means under control of the characteristic coodesignal to record on the selected recorder the correspondingcharacteristic.

7. In a recording system, an electrical circuit, means to transmit oversaid circuit a start impulse followed by a series of code impulses, aplurality of recorders, means' controlled by said code impulses toselect a recorder, and means controlled by other of said code lmpulsestorecord on the selected recorder characters indicating characteristics ofa stock to which said recorder corresponds.

d. in a recording system, an electrical circuit. means to transmit oversaid circuit a series oi permutation code impulses, a series oirecorders, means under the control of said impulses to select arecorder, means also under the control oi said impulses to record on theselected recorder characteristics representing desired characteristicsof an item to which said recorder corresponds.

9. In a telegraph system wherein a plurality of messages are to betransmitted each message comprising a routing part and a body part,means for transmitting messages, a plurality of recorders, meanscontrolled automatically by the routing part of a message to select arecorder, and means to record the message on the selected recorder.

1'0. In a telegraph system wherein a plurality of messages are to betransmitted each message comprising a routing part and a body part,means for transmitting messages, a .plurality of type printingrecorders,` means controlled automatically by the routing part of amessage to select a recorder, and means to record the message on theselected recorder.

11. In a printing telegraph system, a master station, a substation, aplurality oi recorders at the substation, a selector at the substationfor selecting one of said recorders, a circuit connecting the masterstation and the substation, and means to transmit over said circuit aseries of signals for operating said selector to select one of saidrecorders and for making a record on the selected recorder.

12. In a telegraph system, a plurality of devices operable bycode-signals, a telegraph circuit, means to transmit over said circuit aseries of code-signals, selector means operable by said code signals toselect one o! said devices, and means in said selected device responsiveto said code signals.

13. In a telegraph system, a plurality of devices operable bycode-signals, a telegraph circuit, means to transmit over said circuit aseries of code-signals to operate said devices, and means controlled bythe same said code-signals to bring dlii'erent ones of said devices intooperative condition with respect to said code-signals.

14. In a telegraph system, a plurality oi recorders, a telegraphcircuit, means to transmit on said circuit a series oi' messages eachmessage composed of a plurality of codes to operate a selected one oi'said recorders, and means controlled by certain of said codes to selecta recorder and controlled by other codes to disconnect the selectedrecorder.

15. In a telegraph system, a telegraph circuit, means to transmit oversaid circuit a series of signals, a mechanical distributor controlled bysaid signals, a plurality of recorders adapted to be controlled by saiddistributor, a selector adapted to bring selectively different ones ofsaid recorders into operative relation with said distributor, and meansrendering said selector selectively operated according to said signals.K

16. In a telegraph system,two tandem telegraph circuits, means totransmit signals on the ilrst of said circuits, means4 controlled bysaid signals to select a receiver for the secohd of said circuits, andmeans to transmit on the second of said circuitsother signalscorresponding to the signals first mentioned.

17. In a quotation system, a plurality of recorders adapted to recordconsecutive quotations, means to select a recorder according to theidentity of the stock quoted, and means to record en the selectedrecorder, numericalv characters according to the price and othercharacters according to the range of the quotations.

18. In a quotation system, means to transmit a series of signalsindicating the stock, the value and the range oi' a quotation, aplurality oi recorders each recorder corresponding to a stock, means toselecta recorder according to the stock signals, means to recordaccording to the value signals, and additional means to make a specialrecord according to the range signals.

19. In a printing telegraph system, a plurality of printers, means forselecting one of said printers, a typewheel in each printer havingprinting surfaces-representing figures and other printing surfacesrepresenting ranges, and means to operate said selected printer afterselection to print at times a figure and at other times a characterrepresenting range.

20. In a telegraph system, a transmitter for sending over a singlechannel a series of code signals representing a series of unit messageseach unit message comprising a group of letters followed by a group ofgures, a plurality of printers, and means to record letters and figuresof some unit messages on one of said printers and letters and gures ofother unit messages on another of said printers.

2l. In a telegraph system, a transmitter for sending over a singlechannel a series of code signals representing a series -of unit messageseach unit message comprising a group of letters followed by a group ofcharacters, two printers, means to record legibly unit messages upon oneof said printers, and switching means to change .the record to the otherof said printers, said `one of said two classes for automaticallydisabling said receiver.

23. In a telegraph system, a single channel, a transmitter for sendingover said single channel a series of signals representing a successionofunit messages each unit message comprising a group of letters followedby a group of figures, a telegraph receiver normally associated withsaid channel to receive said signals, and selective means responsive tosaid signals for disabling said receiver. L y

24. In a printing telegraph system having a plurality of printinginstruments connected to record stock quotations, the method ofassigning different quotations to different instruments which consistsin selecting the respective instruments by the letter-portion of thequotation and then recording all of the quotation.

'25. In a. printing telegraph system, a plurality of receiving printersresponsive to received code combinations of impulses, a directingreceiving instrument having selectors also responsive lto some of saidimpulses, circuit controllers operable by said selectors, and meansgoverned by said controllers to render at all times at least one of saidreceiving printers effective.

26. In a printing telegraph system, a receiving instrument havingselecting mechanism respon- A sive to received code combinations ofimpulses, a 4Q plurality of printers, and a plurality of circuitcontrollers actuable by said selecting mechanism to select one of saidprinters and to render said selected printer responsive to said codecombinations of impulses.

27. In a telegraph system in which the transmitted intelligence isconstituted of groups of characters, a plurality of receiving recordinginstruments and means actuated by the received intelligence to rendercertain of said receiving instruments ineffective to record certain ofsaid groups and permitting other of said instruments to record the same.l

28. In a printing telegraph system, a receiving instrument havingselecting mechanism responsive to received code combinations ofimpulses, a plurality of circuits, a plurality of circuit controllers,means actuated by said selecting mechanism and actuating said circuitcontrollers, and printers having operating magnet windings included insaid circuits governed by said circuit controllers.

29. In a unit message system in which each message comprises ar group ofcharacters, two registers, switching mechanism, means controlled by saidswitching mechanism during receipt of a portion of a unit message forpreparing to render one of said registers operative and the other ofsaid registers non-operative, and means operative subsequently forcompleting the prepared operations.

30. In a printing telegraph system for recording intelligencecharacters, a plurality of receiving instruments each having selecting.mechanism responsive to permutation code combinations of selectingimpulses, one of said instruments having circuit controlling meansactuated by said selecting mechanism subsequent to receipt ofpermutation code signals representing a complete group of characters,the other instruments having printing mechanism positioned by saidselecting mechanism, and means actuated by said circuit controllingmeans for rendering one of said printing mechanisms effective and forrendering the other of said printing mechanisms ineffective.'

31. In a telegraph system in which the transmitted intelligence isconstituted of groups of characters, a plurality of receiving recordinginstruments, means operative during the receipt cf a group of charactersto render certain of said receiving instrumentsineffective to record allcharacters of a subsequently transmitted group of characters and forpermitting others of said instruments to record .the same.

32. In a unit message system in which each quotation or messagecomprises a group of characters, a plurality of registers, and switchmechanism operative upon the receipt of an initial portionof the messageto be printed to render one of said registers operative and the other ofsaid registers non-operative.

33. The method of classifying received intelligence in a telegraphsystem, which consists in automatically directing the intelligence intoone or another predetermined channel determined by an initial portion ofeach group of intelligence characters. y

34. In a telegraph system wherein the received intelligence is arrangedin groups of characters comprising a letter or letters followed byfigures, the method of classifying said intelligence which consists indirecting the groups into difierent channels determined by a certainpart of each group.

35. In a telegraph system wherein the received intelligence is arrangedin groups of characters, the method of classifying said groups whichconsists in receiving all of said intelligence upon a plurality ofreceiving instruments and causing a certain part of each group to selectan instrument upon which the group shall be recorded and preventing theother instruments from recording the same.

36. In a telegraph system in which the transmitted intelligence isconstituted of groups of characters, a plurality of receivinginstruments each connected to receive all of the transmittedintelligence, certain of said instruments having means to render therecording function inoperative, and means associated with one of saidinstruments responsive to a certain portion of each group to determinewhich instruments shall function to record and which instruments shallnot record the intelligence group.

37. In a. printing telegraph system for recording intelligencecharacters, a plurality of receiving instruments each having selectingmechanism responsive to permutation code combinations of selectingimpulses, one of said instruments having circuit controlling meansactuated by said selecting mechanism, the other instruments havingprinting mechanism positioned by said selecting mechanism, and meansactuated by said circuit controlling means to render one or another ofsaid printing mechanisms ineffective determined by a certain portion ofany word or group of received characters.

38. In a printing telegraph system having a plurality of printinginstruments connected to record the received intelligence, the method offinancer i 9 assigning different portions oi.' the intelligence todiii'erent instruments which consists in controlling the respectiveinstruments by a certain portion oi each group of intelligencecharacters. 39. In a signaling system, a source of signals comprising aplurality of groups oi' character code signals consisting solely ofselecting im- .pulses transmitted in continuous succession and formingpart of a single message, and mean responsive to said signals andarranged to insert rest and start impulses intermediate each charactercode group.

40. In a signaling system, a source of signals s comprising a pluralityof groups oi.' character code signals transmitted incontinuousisuccession and forming a part of a single message, areceiving distributor and means including said distributor for applyingprinter control conditions to each character code group.

41. In a signaling system, asource of signals :i comprising a pluralityof groups oi character code signals transmitted in continuous successionand forming a part of a single message, a receiving distributor andmeans including said distributor for inserting a case shift condition ineach character code group.

42. In a signaling system, a source of signals comprising a plurality ofgroups of character code signals, said groups consisting of a nonuniformnumber of selecting conditions, a distributor arranged to receive saidsignals, retransmitting means associated with said distributor and meansfor addingselecting conditions to said character code groups to r'enderthe number oi' selecting conditions in each group uniform.

13. In a telegraph system, a printing mechanism including a vcase shiftapparatus, means responsive to character control signals for effectingtype printing operations, and means inde- 40 pendent of said charactercontrol signals for operating said case shift apparatus at predeterminedintervals.

44. A telegraph system comprising a source of letter-code permutationsignals, a pilot register', and a plurality of printers,`said pilotregister responsive to all of said letter-code signals and includingcircuit controlling'means to distribute predetermined ones of saidsignals to one or another of said printers.

45. A telegraph system comprising a source of letter-code permutationsignals, pilot means, and a plurality of printers. said pilot meansresponsive to all of said letter-code permutation signals and includingcircuit controlling means to distribute predetermined ones of saidsignals to a predetermined one of said printers.

46. A telegraph system comprising a source of letter-code permutationsignals. pilot means. a plurality of printers, means for repeating said00 permutation signals. said pilot means responsive to all of saidletter-code permutation signals, and said means for repeating responsiveto said pilot means to distribute predetermined ones of said signals toa predetermined one of said printers.

47. A telegraph switching system comprising a source of letter-codesignals consisting of groups Vof character permutations, a pilotregister, a plurality oi' printers associated therewith, said pilotregister responsive to all letter-code signals received from saidsource, and means controlled by the selective operation of said pilotregister for distributing one group of signals to one of said printersand another group of signals to another-of said printers.

48. The method of telegraph operation, which consists in separating amessage into two parts, using one part to determine automatically therouting `oi.' the message, and retransmitting the entire messagesubsequent to its routing. 6

49. In a telegraph system, means to transmit a series of electricalsignals representing a plurality of messages, each message comprising arouting part and a body part, means to receive and to store the signals.a plurality of telegraph 1o circuits. automatic means controlled by thesignals oi the routing part of a message to select one of the circuits.and means to transmit over the selected circuit the complete message.

50. In a telegraph system. a plurality of-dei5 vices operable by codesignals, a telegraph circuit, means to transmit over said circuit aseries of code signals, selector means operable by said code signals toselect one oi' said devices, and means in said selected deviceresponsive to all of said code 20 signals for making a record thereof.

51. A printing telegraph switching system comprising a line, means `totransmit code signals over said line, a plurality of recorders distantlylocated to said transmitting means and respon- 25 sive to impulsestransmitted over said line, a

`relay individual to each of said recorders, and

means controlled by certain of the code signals for operating apredetermined relay whereby the recorder -thereof responds to impulsestrans- 30 mitted over said line from said transmitting means.

52. A printing telegraph switching system comprising a line, means totransmit code signals over said line, a plurality of recorders distantly35 located to said transmitting means and responsive to impulsestransmitted over said line, a re lay individual to each of saidrecorders, and means including a plurality of code bars and selectableelements controlled by certain of said 40 code signals for operating aparticula selectable element to operate a predetermined relay wherebythe recorder for said relay responds to impulses transmitted over saidline from said transmitting means. 5 53. A printing telegraph switchingsystem comprising a line, means to transmit over said line permutationcode signals, an ofiice at which said line terminates, a plurality ofrecorder circuits at said oilice, a rotary distributor at said 50ofllce, a selector associated therewith, selecting circuits controlledby said selector, means included in said selecting circuits forconnecting said line selectively to one of said recorder circuits, andmeans for applying predetermined 55 code signals received over said lineto said rotary distributor to operate said selector.

54. In a telegraph system, a plurality of devices operable by start-stopcode signals, a telegraph circuit, means to transmit over said cir- 60cuit a series of different code signals, selector means operable bycertain different code signals impressed on said circuit to select anyone of said devices for operation, and means for establishing thestart-stop conditions for said selected 05 device whereby it responds tothe code signals transmitted over said circuit.

' 55. In a. signaling system, a source of signals comprising a pluralityof groups of character code signals consisting solely of selecting im-70 pulses transmitted in continuous succession and forming part of amessage, 'and means responsive to Asaid signals and arranged to insertrest and start impulses for each group of character code signals. l

controlled by the signals on the rst circuit to transmit on the secondcircuit signals in which the code combinations oi' impulses correspondto the code impulses of the corresponding signals on t'ne first circuit,and means for adding auto matically to each of the code combinations ofimpulses to be transmitted over the second circuit start-stop signalsfor appropriate control.

LOUIS M. POTTS.

